Place cut orange and quartered ginger in the Braun MultiQuick beaker attachment. Attach the blending shaft and blend on high speed about 10-15 seconds until mixture is finely chopped. Stir midway through blending to bring contents from the bottom to the top, and repeat until mixture is chopped finely throughout. Add all but ½ cup cranberries to the beaker and continue to chop until cranberries are finely chopped, about 10-15 more seconds. Stir in remaining cranberries.

Transfer mixture to a bowl and stir in remaining cranberries, brown sugar and walnuts. Cover and refrigerate for at least 2 hours or overnight.